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Q1. Guests makes a request to have a Pizza. The hosts receives the request and initiates procedure to
inform the order clerk about this request. The host makes use of Telephone as physical medium to
convert this request into signal that can be transferred to Pizza shop over a network. The Telephone
makes all necessary signals to ring a bell on other end. Once Clerk hears the bell he reponds to the
request by picking up the phone. The Host and Clerk are now connected and can exchange messages.
The message is exchanges and clerk decoded it as order for Pizza. The clerk conveys the request to the
cook for a Pizza as per specifications required by the guests. This completes the process of order
placement by Guest to the cook.
Next when Pizza is baked at the shop, the parcel is handed over to delivery boy and van is rushed
towards the house of the host. The delivery person hands over the pizza to the client.
Q2.
Q3 .
a. Amplitude : 15 units Frequency = 1/3 units Time period = 3 units Phase =0
b. Amplitude : 4 units Frequency = 1/6.5 units Time period = 6.5 units Phase =0
c. Amplitude : 7.5 units Frequency = 1/2.5 units Time period = 2.5 units Phase =90
French PM
Speaks to translator in French
French to English
Translator
Translates PM's message from
French to English
Translates incoming message
from English to French
Telephone
Conveys MEssage from one
transalator to another in English
Chinese PM
Speaks to translator in Chinese
Chinese to English
Translator
Translates PM's message from
Chinese to English
Translates incoming message from
English to Chinese
Telephone
Conveys Message from one
transalator to another in English

Q4. Equation for waveform A Sin (2ℿ (f)t + θ)
a.
10 Sin(2 ℿ(100) t)
Amplitude = 10.
Frequency = 100 Hz
Time Period = 1/f
= 1/100 =10msec
Phase = 0◦
b.
20 Sin(2 ℿ(30) t + 90)
Amplitude = 20.
Frequency = 30 Hz
Time Period = 1/f
= 1/30 = 33.33msec
Phase = 90◦
c.
5 Sin(500 ℿ t + 180)
Amplitude = 5.
Frequency = 500/2
= 250 Hz
Time Period = 1/f = 1/250 =
4msec
Phase = 180◦
d.